Head-disk spacing control for an advanced rotary tester

2008 ◽  
Author(s):  
Xinghui Huang ◽  
Nils Gokemeijer ◽  
Mark Bedillion ◽  
Patrick Chu
Keyword(s):  
Disk Spacing

Dependence of optical laser power on disk radius, head-disk spacing and media properties in heat-assisted magnetic recording

2020 ◽  
Vol 26 (11) ◽  
pp. 3371-3376
Author(s):  
Tan D. Trinh ◽  
Sukumar Rajauria ◽  
Robert Smith ◽  
Erhard Schreck ◽  
Qing Dai ◽  
...  
Keyword(s):  
Magnetic Recording ◽  
Laser Power ◽  
Disk Radius ◽  
Heat Assisted Magnetic Recording ◽  
Optical Laser ◽  
Disk Spacing

Head Disk Spacing Effect on Heat Transfer in Heat Assisted Magnetic Recording

2017 ◽  
Author(s):  
Shaomin Xiong ◽  
Erhard Schreck ◽  
Sripathi Canchi
Keyword(s):  
Heat Transfer ◽  
Magnetic Recording ◽  
Spacing Effect ◽  
Disk Drive ◽  
Heat Assisted Magnetic Recording ◽  
Heating Source ◽  
Spacing Effects ◽  
Thermal Sensing ◽  
Transfer Mechanisms ◽  
Disk Spacing

Heat transfer at nanometer scale attracts a lot of interest from both academia and industries. The hard disk drive (HDD) industry cares about the heat transfer between the head and disk, as several heating and thermal sensing elements are integrated into the HDD system. Understanding the heat transfer mechanism and its dependency on spacing becomes very critical for heat assisted magnetic recording (HAMR). In this paper, we propose a new method to study the head disk spacing effects on heat transfer by introducing a small perturbation to the spacing while maintaining the heating source unchanged. The dependency of heat transfer on the nanoscale spacing provides insights to the understanding of heat transfer mechanisms inside the nanoscale gap.

Sensitivity study of 40 Gb/In/sup 2/ recording systems to the fluctuation of head-disk spacing

1999 ◽  
Vol 35 (5) ◽  
pp. 2241-2243 ◽  
Author(s):  
Zhi-Min Yuan ◽  
Bo Liu ◽  
Gang Sheng
Keyword(s):  
Sensitivity Study ◽  
Disk Spacing

Novel Measurement of Head-Disk Spacing Without Necessity of Calibration

2000 ◽  
Vol 2000.2 (0) ◽  
pp. 167-168
Author(s):  
Yasunaga MITSUYA ◽  
Hiroyuki OKA
Keyword(s):  
Disk Spacing
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